Physics-(general)

NEET Physics (general) MCQ Question

Type: MCQ-conceptual-Hard-Class 12

Using the Rutherford model, what happens to the trajectory of an alpha particle as it approaches the nucleus at a small impact parameter?

A

It is deflected by a large angle.

B

It continues in a straight line.

C

It spirals into the nucleus.

D

It slows down and stops.

Correct Answer

Option A

Detailed Explanation

According to Chunk 3, the trajectory of an alpha particle depends on the impact parameter. A small impact parameter results in a large angle of deflection due to the strong electrostatic force near the nucleus.

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